Heavy-duty vehicle



Aug. 8, 1950 P. DE ANGUERA HEAVY DUTY VEHICLE 2 .Sheets-Sheet l INVENTOR. fzZz/'v de lifeguard BY MMV/M Aug- 8 1950 P. DE ANGUERA 2,518,293

HEAVY DUTY VEHICLE Filed March 18, 1948 2 Sheets-Sheet 2 z t 55 34 l 37 '2/ E :5v f5" L a E l l .aa/z i 4 i I Z9 a i E /4 t it v I 6' 7 a 3? /7 o' 4l /9 :ll-IEE; 42 l -39 as sf :g i 52 E: 4 45 l' E I i l 56 l 44 g E Il 4 I f5. f' //0 2 ,2z 6|/ 6,3 //a a 45 i INVENToR.

.illustrated .in Figf..

. lghilip.. d, Angum. Cinqinnggi, 911159 assign@ or Application Maman. 1s, 194s, seriaLNn-lsgeaif l 105613115@ (c1.2.14.11f8.4.)`

theJfneighmransferzri @r an uf'lsedni'medwte i. 4 he., ks 2 .-426 .the trailer-.fon my which, partfthreof b f A asses th .ugh

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transfer roller I9 and the friction drive rollers 33-33 are fixed against rotation on the shaft 29 which in turn is journaled in a laterally spaced pair of longitudinally movable bearing blocks 26-26 slidably mounted on the vehicle frame for longitudinal movement between the rear portion thereof and the wheels l l-i I. One or more laterally disposed pairs of load supporting ro-llers may be carried bythe frame and as illustrated in Figs. 3 and 4 a roller mounting shaft 34 is xed in a transverse slot 35 formed in the upper portion of the longitudinal member I6, said shaft being fixed therein as by welding, or the like. Rollers 36-96 are rotatably mounted on the shaft and are held thereon against axial movement by suitable ring members 31 xed to the shaft. A bulk head 38 s welded at its lower end to the forward end of the longitudinal frame member I6 and may have a diagonal brace '39 welded to its upper forward edge and to the upper sides of said frame member.

During certain directional movements of the trailer for loading and unloading purposes the friction drive rollers 53-33 for the load transfer roller I9 are engaged under correct pressure with the peripheries of the tires carried by the rear wheels II--Il for the trailer. This function is brought about by means of a link connection between the transfer roller and a draft bar 40 for the trailer. The draft bar extends through and is freely mounted for axial movement in the longitudinal frame member i6. The draft bar has a plate d! fixed to its rear portion I2 to which is pivoted the inner ends of levers I3-i3 that are mounted for rocking movement on arms 44-44 in turn welded to the frame. Y The outer reduced ends I5-i5 of the levers pass through elongated slots 46-46 (Fig. 5) formed through the forward portions of the bearing blocks 2li- 25. The forward end of the draft bar is welded to a hitch plate which has a` hole therein for receiving a pin 48 vcarried by the bar I2 for the prime mover.

It will be understood that upon the institution of rearward, directional movement of the frame by the prime mover the draft bar will be forced rearwardly of the frame which through the lever connections-brings the friction drive rollers 33-33 into operative, positive contact with wheels II-Il whilst forward movement of the prime mover forces the draft bar in a forward direction thereby moving the friction drive rollers into inoperative positions with their peripheries spaced away from the wheels II--II.

I also provide means for maintaining the transfer roller and its associated friction drive rollers in their operative or inoperative positions which as most clearly illustrated in Fig. 3 comprises an L-shaped lever I9 pivoted at 55 between spaced arms 5I and 52 riveted at their inher ends to an inverted U-shaped standard 53 which in turn is welded at its lower ends to the forward end of the longitudinal frame member I6. The rear portion 54 of the lever is reduced and freely passes through a slot 55 formed through a cylindrical dog 55, which is guided for vertical movement in aligned apertures formed through the U-shaped standard l53 and the frame member I6. A compression spring 51 encircling the dog and disposed between the standard and the reduced portion 54 urges the lower end of said dog against the draft bar v4l). A pair of spaced shoulders 58 and. 59 are formed on the 'draft bar and cooperate with the dog 56 to lock 'the bar in positions which' determine the operative and inoperative positions of the load transfer roller I9, vis., when the dog is positioned between the shoulders 58 and 59 the transfer roller I9 is in operative position with its friction drive rollers 35-33 engaged with the tires of the vehicle wheels I I--II under a predetermined and constant driving pressure, and when the dog is dropped in back of the shoulder 59, as shown in Fig. 3, the draft bar is in inoperative position to lock the friction rollers 33-33 out of engagement with the tires of said vehicle wheels II-I I. Plate 4I acts against frame member I4 as a stop for the draft bar 56 when the prime mover is actuated to move the vehicle in a forward direction.

During transit of the load on my vehicle it is necessary to lock the transfer roller against rotation to prevent displacement of the load and to this end I preferably employ a toothed ratchet wheel 59, fixed to one side of the shaft 29 between the friction drive-roller 33 and the bearing block 26. A pawl 6I cooperates with the ratchet teeth to prevent rotation of the transfer roller in an unloading direction (clockwise as illustrated in Fig. 5). The pawl is pivotally mounted on an extension 63 of the member 22, and is disengaged from the ratchet by a flexible cable 64 remotely controlled by the operator of the prime mover through a manual pull ring G5 mounted on the trailer brace 39 for the bulk head 38.

' My invention nds its principalfutility 1n lumber yards where lumber is unloaded from railroad cars, sorted into stacks, and the `stacks moved to assigned places in the yards where they stand, subject to order until they are shipped to the fabrication point. T-hese operations are predominantly carried out by hand as the lumber is manuallyunloaded from the cars and sorted into stacks generally supported on suitable skids which maintain them in spaced relation from the ground. The skid is picked up and moved to its assigned place in the lumber yard by a fork truck or tractor which has a raising mechanism thereon adapted to engage under the skid. The lumber is manually loaded from the skid upon the usual motor truck and transported to its fabricating destination thereon.

My device practically eliminates the handling of lumber in the yards, it being only necessary to sort it from the railroad cars into inclined stacks 66 (Fig. l) each of which is supported by a suitable propping member 61 at an intermediate point along its length and which has one lower edge resting upon the ground. The stack is preferably bound together in packages by steel strapping 68, or the like.

' With particular reference to Fig. I1 my heavy duty vehicle is automatically loaded by providing it with the directional movement indicated by the arrow through the prime mover or tractor I3 until the load `transfer roller I9 engages the underside of the stack 66. The lever 53 is then vpulled forwardly by the tractor operator to release the dog 56 from in back of the shoulder 59 on the draft bar 40, so that it will beconditioned by spring 51 to fall between the shoulders 58 and 59 upon initial movement of the vehicle against the inertia of the stack, for the draft bar will move rearwardly, and through its lever connections Adlt- 43, the friction drive rollers 33-33 will be urgedv into'contact with the peripheries of the tires on the rear wheels II-II. When a predetermined pressure occurs between the tires and the friction drive rollers the dog 55 will be moved between the fixed shoulders 58 and 59 on the draft .barr4m1-thereby-flookins i the: han avenir.;Sl'riltllllsE gitudinal'. axial-g movement; andr maintaining the. friction; rollers in. correct. pressure.- contact.AAA thewheels... Contact oftheffriction,driver 331.-..33 with wheels. lli-lil- .nos e1 transfer roller` I9` at. a sneed: and; to. the ground: sneed oi; the. vehicle..andiy a vehiolef continues to be. driven: rearwardl front end. of; the stack to; is sed; thefnronfi? falls, and the-transfer rolleraises theload 655g upon. the frame. to afposits-.1on11 illustrated: da

2'. 'lhevehicle marY then be driren; farvi/:a

the.,direotion. of vthe:arr-.ort (Eig. 2.9.. at;wbh;.. .i thelrwmr-y 4.9.fis again reloasedtofnerrnit tendra-.ft bar to. be moved; forwardlytherebr moi/ina the rollerl In rearwardly to diseneaee.- the friction; drive rollers. def-3.3; from; wheels Hrflfl; Whe a the-doe; 5&.vvil1 dronbehind thesbdulder 5.9Y hold the roller in thefposition indicated 3.. said inoperative position the nawl Si.' engages the teeth of the. ratdhet.,tonredlnde rotation ofthe transferrollon An. important. factorA in. the .satisfaetoryf operas tion of my heavy duty vehiale theres e trol oftbe drivin-e. nressure between thennsne matic tires lil 0; and.y the fritton,` rollers.l t191-.tir-l the draft bar locking means, If theprefs*s iille;s..1101igreat. eno-nah f slippage, Occurs between, the; vehicle wheels, [L -liandtheffrictionvdrive ler 33' 3 3 thereby. rendering the transfer rollY f tive for load-.ine and unloading nurndses. and Qn theother. hand, ifi the. driving pressure; between the tires; and the frictionv rollersz is;too great the rollers vare forced into. the treads. offfthetiresgand: acti asbrake shoes .on the vehicle;wheelsthereby particularlyV precludingthe. loa-.dinger my vehicle. In. general the periphery of. a; pneumatic tire. is depressedv under load; to about. one.. inch` andv a. half along its, out of ronndroad contactingfsur: faceand` itis contemplated thatmy friction. drive il roller be locked bythe draft bar-lin adriving-.pose ticnwhichywill depress. or sink itfintothertread. or. tireperiphery to about the lsamedepth .measurement. For .eflicient operation the tires ofzmy vehicle. shouldl always be maintained at their proper pressures.

I have also found that there are certain limitations as` to height andi length ofr` the inclined` load which may be handledy my automatic. loading device.y Invtherstplace theload transfer roller should be positioned on the trailer as close-'tothe ground as is practically possible, secondly-the. length of the load varies directly-With its height, and .thirdly..the loading speed*- vof? the Vehicle should be greater for relatively short and g high loads and slower for longer and lower loads.

To unload my device the dogl is rst'released from behindthe shoulder .59 Lbyoperation of lever 49 and the vehicle moved by the prime mover in a rearward direction until the friction drive rollers 33-33 contact the wheels Il-ll where they are held by releasing the lever 49 to permit the dog G to fall between the shoulders 58 and 59. Upon release of the ratchet by pulling the ring 65 the vehicle may be moved in a forwardly 65 direction and the transfer rollerwill be driven in a direction of and at a speed equal to ground speed to move the lumber to the position illustrated in Fig. 1 where a prop 61 may be inserted thereunder provided the lumber is to be picked up againby my device and thereafter the vehicle is moved away from under the stack. 1f the stack is not to be picked up again the vehicle may deposit the stack directly upon the ground, if. desired.

rcction eguali. 17h-QE hour for longitudinalshifting movement; there.

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andrnavins ends; entendi-na. beveled.C sidestof'tne leonard a.y load transiter.- roller; fired to; the central; part ortho. Shaft; @litt rlllllil lthflg engaging. friction drivev roller fixed .to each of une.' .shait ends.. said `friction .drive rollers; boina normally. neldbis the snaftin proxima asnaedff relationshingrelatire tothe Wheels; and; emisor? ersaivs; upon. movement of. tbey ven-.isle body. f

intheframegmembersuand disnosedrin tranvers@ alignmentbetween. .the rear. wheels and;` .the rear. frame end, a. load transfer rollerd r-nountegzly for longitudinal` movement .intheguidea fgrictionrollg ers fixed-z coaxiallyK to .the roller.l andi in,y longif.

g. tudinalialigrnnentwith.the wheels, ,and means -onthe irairie-forl .engaging Vand disengagingthe fric-.-V

tion rollersand the wheels'. 3: In a heavyv duty. vehicle. fon piolsing up, a

inclined load.L the: combinationzof axframe. having;

` atleast a: pair .ois-rear.. wheels, aprimemornrffoli timeframe, a loadtransfer roller. .disposed trans.; versely/or? lthe frame. and betweenitherearfranie end-`v and: the. wlfieels, means. for mounting. said rollerion theframe for alternatingmotiorr longif. tudinallyA of theirame, friction rollersyxed to the. transfer roller and: haringtheir, peripheries in longitudinalalignment .with the .yehiclewheels whereby upon. rearwardly directed movementl .o the frame: the. load; transfer rollers iseng-.aged der the -ir-iclinedload,` an.d.forces=.the friction. rolls-f ers .intofpositive driving.l Contact with the. vehicle wheels;

4... In a heavy ,duty vehicleior. pickingupgan inclined load comprisingy a wheeled. trama. a transverseloadrmoying roller mounted for alternate;r longitudinal movement. intermediate the rear. wheels. and the. frame. end. friction..drive rollers fixed: to.l the loadlmoving.'ro-ller. and; no: sitioned in.. longitudinal; alignment with. the rear wheels-whereby uponirearwardly directed mover.. ment-.of the frame, thezloadfmov-ing rollerxis-.posistively. driven by. engagement orV the frictionlrollers andfthewheels.

5. In--a heavy.. duty vehicle the combination.: of a frame havingA at leastiapairv off rear ground wheels, a.y transverse, load transfer-roller freely mounted on-.the frame for-alternate, longitudinal movement between '.thexwheels and the` rear frame end, friction drive rollers xed to the load transfer roller and positioned in longitudinal alignment with said rear wheels, a longitudinal draft bar mounted on the frame for axial movement, a prime mover independent of the frame, means for hitching the forward end of the bar to the mover, and power transmitting means between the bar and the load'transfer roller for engaging and disengaging the friction drive rollers and the rear wheels upon alternate directional movement of the Vehicle by the prime mover.

6. In a heavy duty vehicle the combination of a frame having spaced side members supported at least by a pair of rear wheels, longitudinal guides formed in the frame members and disposed in transverse alignment between the rear 'wheels and the rear frame end, a guide block.

mounted in each guide, a load transfer roller journaled in the blocks, friction rollers fixed coaxially to the transfer roller and disposed in longitudinal alignment with the wheels, a longitudinal draft bar mounted on the frame for axial movement, link connections between the bar and the guide blocks, a prime mover independent `of the frame, and means for hitching the prime mover to the forward end of the draft bar.

'7. In a heavy duty vehicle the combination of a frame having spaced side members supported at least by a pair of rear wheels, longitudinal guides formed in the frame members and disposed in transverse alignment between the rear wheels and the rear frame end, a guide block mounted in each guide, a load transfer roller journaled in the blocks, friction rollers fixed coaxially to the transfer roller and disposed in 1ongitudinal alignment with the wheels, a two position draft bar mounted for axial movement longitudinally of the frame, a link connection between the bar and the guide blocks, a reversing prime mover independent of the frame, means for hitching the prime mover to the forward end of the draft bar, and a releasable lock means between the frame and the bar for selectively securing the bar in either of its two positions.

8. In ,a heavy duty vehicle the combination of a frame having spaced side members supported at least by a pair of rear wheels, longitudinal guides formed through the frame members and disposed in transverse alignment between the wheels and the rear frame end, a guide block slidably mounted in each guide, a load .transferv roller journaled in the blocks, said roller being freely movable on the frame between a forward operative position and a rearward inoperative position, Ia friction drive roller fixed coaXially to each side of the transfer roller, said rollers being disposed in longitudinal alignment with the wheels and adapted to have their peripheries in driving engagement with the wheels when the transfer roller is in its operative position, and to have said peripheries disengaged from the wheels when the transfer roller is in inoperative position, a two position draft bar mounted for axial movement longitudinally of the frame, link connections between the bar and the blocks, a revers ing prime mover independent of the frame, and means for bitching the forward end of the bar to the prime mover whereby upon rearward directional movement of the vehicle the transfer roller is moved to its operative position and upon forward movement of the vehicle the transfer roller is moved to its inoperative position.

9. In a heavy duty vehicle the combination of a frame having spaced side members supported at least by a pair of rear wheels, longitudinal guides formed through the frame members and disposed in transverse alignment between the wheels and the rear frame end, a guide block slidably mounted in each guide, a load transfer roller journaled in the block-s, said roller being freely movable on the frame between a forward operative position and a rearward inoperative position, a friction drive roller fixed coaxially to each side of the transfer roller, said rollers being disposed in longitudinal alignment with the Wheels and adapted to have their peripheries in driving engagement with the wheels when the transfer roller is in its operative position, and to have said peripheries disengaged from the wheels when the transfer roller is in inoperative position, ya two position draft bar mounted for axial movement longitudinally of the frame, manually operable means for locking said bar in either of its said positions, link connections between the bar and the blocks, a reversing prime mover independent of the frame, and means for bitching the forward end of the bar to the prime mover whereby upon rearward directional movement of the vehicle the transfer roller is moved to its operative position and upon forward movement of the vehicle the transfer roller is moved to its inoperative position.

10. In a heavy duty vehicle for picking up an inclined load the combination of a frame having at least a pair of rear wheels, pneumatic tires for said wheels, a prime mover for the frame, a load transfer roller disposed transversely of the frame and between the rear frame end and the wheels, means for mounting said roller on the frame for alternating motion longitudinally of the frame, friction rollers fixed to the transfer roller and having their peripheries in longitudinal alignment with the vehicle wheels whereby upon rearwardly directed movement of the frame the load transfer roller is engaged under the inclined load, and forces the friction rollers into positive driving contact with the vehicle wheels, and means on the frame for locking the wheels and friction roller in said positive driving contact.

PHILIP DE ANGUERA` REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,142,672 Clayton June 8, 1915 2,156,438 Suverkrup May 2, 1939 2,044,652 Walker June 16, 1936 2,377,786 Johnson et al June 5, 1945 2,407,930 La yPointe Sept. 17, 1946 2,407,993 McKee Sept. 24, 1946 

